Mother in law spiked my drink

Not gonna add a huge backstory because I’m just looking for advice right now but I’ll update later if anyone’s interested. My mother in law hates me and as soon as she found out we were pregnant she’s been a grade A bitch and told us she hates me hopes I die hopes I lose the baby etc. My husband had to grab a few things from their house this morning and took me with him to wait in the car (we were going shopping) and she saw me and invited us into the garden to chat and she apologised for being a bitch etc bla bla bla, I wasn’t in the mood for a fight so I just dropped it and said okay cool, she come out with glasses of lemonade for us, everyone’s was in a blue glass but mine was red didn’t think anything of it, took a drink and automatically tasted vodka as soon as it hit my tongue, spat it out and said that has alcohol in it. She denied it, my husband tried it and said that’s definitely got vodka in it. She said it must be dish soap and after 5 minutes of back and forth she admitted she put vodka in my drink to try “end her nightmare of me having her sons baby”. I was livid walked off and got in the car my husband argued with her for another 5 minutes and she told him she only put enough in to “make me feel it” aka half the cup. I don’t know how I didn’t smell the vodka before I drank it, I didn’t swallow it, maybe a tiny bit but I spat it right back out and had nearly a whole bottle of water right away, I’m just a bit worried now. Do you think my baby will be okay? I know it sounds silly but first time parent and losses previously makes me incredibly anxious especially with this! Any advice would be amazing please