What happened with your wedding?
I was pregnant with my DD2 and DD1 was just a baby when we got married. My MIL (and SIL/FIL) refused to come to our wedding. Turned out that they did want to come all along but thought that we ´would do anything to make sure that they came´. I.e. they were trying to be controlling and manipulative.
Such toxic personalities and why I keep my distance as much as possible these days. I certainly don´t want them involved with the me during the early stages of my pregnancy.
I'm sorry you're stuck with such terrible in-laws.
She tried to take over. As soon as she found out we were getting married, she started inviting all of her friends by word-of-mouth. We had to put the kibosh on that, because we couldn't afford a big wedding, and paid for everything ourselves. She was upset about that. When she found out that we weren't inviting children, she LOST HER MIND. She insisted we had to change venues since ours wasn't big enough to allow for everyone's kids. I explained that the next cheapest option would cost us almost $10,000 more, and asked if she was willing to help foot the bill since it was her decision to move the venue, and she was furious. We offered to make her granddaughter a ring bearer so she could be at the wedding itself, and she was angry that she'd need a babysitter for the reception. We paid for a coworker's daughter to get pediatric first aid and CPR certified and covered the cost of the sitter, and that wasn't good enough. She accused me of being "hostile" and tried to convince my hubby to call off the wedding. She offered to be the photographer (she's a photographer) to hubby, asked him to pass me the phone, then told me she only made the offer to be polite and didn't want to be. I was okay with that (she's a wildlife photographer, not a portrait photographer) and said we just wanted her to relax and enjoy herself, and she seemed relieved, but then raged at all of her friends about how I wouldn't "let" her be the photographer. We tried to find some middle ground then and asked if she would set up a photo booth, and she agreed, and told us the night before the wedding that she didn't feel like doing it, so she didn't. During the wedding itself, she decided to do an event she didn't clear with us at all and hadn't put in the schedule. She hadn't practiced the set-up before hand, so about 45 minutes of her keeping our music turned off (it was the dance time!) and fiddling with her equipment, most of our guests got bored and left.
That's not even the worst she's pulled with us since we go together. She was even worse when I had my MC last year (which she doesn't know about, per se, but omfg she threw a FIT that I wouldn't tell her why I had "minor surgery").
It's hard because she is just completely inappropriate and invasive, but she and hubby are very close (despite her bilking him of money at every possible opportunity) because she was a single mom for so long.