4 yr old and pregnant

I'm 36 weeks and out of work due to heart issues. My 4 yr old used to be such a good sleeper.... Until 9-10 and now of course that I'm in ther last few weeks of pregnancy and exhausted and not sleeping good At night until about 3/4am she's decided to start waking up between 6-7 every morning!!! It's making me so cranky. I just want to sleep. I feel bad being so angry at her but I'm just tired. Whaaaaa  okay I'm finished whining for the day now 😇