Round ligament pain?

Is this still a thing at 31 weeks??

Yesterday at work my belly was bothering me. Almost like it felt sore and I particularly would notice it when I got up and down from my desk. I ignored it and noticed when I got home it still hurt a little. Then last night me and the hubby tried to have sex and literally no position was comfortable and my belly hurt in almost all of them and I just had to stop. By. That point it felt like more than soreness and sleep was terrible since every time I rolled over I could feel it. Then of course when I wake up this morning it still there! First as a soreness now almost feeling like mild cramps or a dull ache. I'm a FTM my doctor told me the other day I should call her if I had pain, bleeding, or decreased movement but I don't want to call for something that may be normal. Anyone know what it could be?