Fort Jackson

So my fiancé left the 24th last month to go to basic training.. I haven't talked to him in the phone since the 30th and I'm so sad. I've written him every day since I got his address on the 1st but he hasn't gotten any of my letters but I've gotten 6 of his. He's so discouraged because he doesn't think I've been writing but I have. Every. Single. Day. I don't want him to think I don't care about him anymore. He's said that in one of his letters.. I don't know what to do.. also I'm a week late for my period.. 😔😭